Japan explosion: Dozens injured in Sapporo restaurant blast

Japan explosion: Dozens injured in Sapporo restaurant blast

Japanese police say 42 people were injured in the explosion, with one of them in a serious condition.

The cause of the explosion in the Toyohira district is not yet known. Some reports suggested a gas blast.

Images on social media initially showed flames rising from the area with debris all around, and later firefighters tackling collapsed buildings.

Police sealed off the area amid fears of more explosions.

More than 20 fire engines were reportedly deployed.